syzkaller login: [ 38.315063][ T30] kauditd_printk_skb: 6 callbacks suppressed [ 38.316799][ T30] audit: type=1400 audit(38.250:68): avc: denied { read write } for pid=2968 comm="sftp-server" name="null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.362696][ T30] audit: type=1400 audit(38.280:69): avc: denied { open } for pid=2968 comm="sftp-server" path="/dev/null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 Warning: Permanently added '[localhost]:61788' (ED25519) to the list of known hosts. [ 86.305196][ T30] audit: type=1400 audit(86.240:70): avc: denied { execute } for pid=2977 comm="sh" name="syz-executor914966331" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 86.353304][ T30] audit: type=1400 audit(86.300:71): avc: denied { execute_no_trans } for pid=2977 comm="sh" path="/syz-executor914966331" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 86.832643][ T30] audit: type=1400 audit(86.730:72): avc: denied { execmem } for pid=2977 comm="syz-executor914" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 86.961495][ T30] audit: type=1400 audit(86.900:73): avc: denied { create } for pid=2978 comm="syz-executor914" anonclass=[userfaultfd] scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 86.974764][ T30] audit: type=1400 audit(86.920:74): avc: denied { ioctl } for pid=2978 comm="syz-executor914" path="anon_inode:[userfaultfd]" dev="anon_inodefs" ino=1767 ioctlcmd=0xaa3f scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 executing program [ 86.979142][ T2978] ------------[ cut here ]------------ [ 86.979494][ T2978] WARNING: CPU: 1 PID: 2978 at mm/highmem.c:611 kunmap_local_indexed+0x210/0x228 [ 86.980787][ T2978] Modules linked in: [ 86.981370][ T2978] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 86.982061][ T2978] CPU: 1 PID: 2978 Comm: syz-executor914 Not tainted 6.8.0-rc5-syzkaller #0 [ 86.982485][ T2978] Hardware name: ARM-Versatile Express [ 86.983073][ T2978] Backtrace: [ 86.983818][ T2978] [<81837b0c>] (dump_backtrace) from [<81837c08>] (show_stack+0x18/0x1c) [ 86.985214][ T2978] r7:00000000 r6:82622dc4 r5:60000093 r4:81fbd4bc [ 86.985563][ T2978] [<81837bf0>] (show_stack) from [<81855124>] (dump_stack_lvl+0x48/0x54) [ 86.986432][ T2978] [<818550dc>] (dump_stack_lvl) from [<81855148>] (dump_stack+0x18/0x1c) [ 86.986697][ T2978] r5:00000000 r4:82850d18 [ 86.986852][ T2978] [<81855130>] (dump_stack) from [<818386b0>] (panic+0x120/0x378) [ 86.987462][ T2978] [<81838590>] (panic) from [<802439cc>] (print_tainted+0x0/0xa0) [ 86.988011][ T2978] r3:8260c484 r2:00000001 r1:81fa5e94 r0:81fadb60 [ 86.988185][ T2978] r7:8046cfa0 [ 86.988309][ T2978] [<80243958>] (check_panic_on_warn) from [<80243bc0>] (__warn+0x7c/0x180) [ 86.988553][ T2978] [<80243b44>] (__warn) from [<80243e3c>] (warn_slowpath_fmt+0x178/0x1f4) [ 86.989184][ T2978] r8:00000009 r7:81fd3b7c r6:df961b84 r5:83668c00 r4:00000000 [ 86.989816][ T2978] [<80243cc8>] (warn_slowpath_fmt) from [<8046cfa0>] (kunmap_local_indexed+0x210/0x228) [ 86.990111][ T2978] r10:200fb000 r9:ffeda7d8 r8:836c9830 r7:84151500 r6:00000003 r5:83668c00 [ 86.990426][ T2978] r4:ffedc000 [ 86.990638][ T2978] [<8046cd90>] (kunmap_local_indexed) from [<804d9c84>] (move_pages+0x5a4/0x1050) [ 86.991063][ T2978] r7:84151500 r6:00000000 r5:00000000 r4:fffffffe [ 86.991229][ T2978] [<804d96e0>] (move_pages) from [<80551f30>] (userfaultfd_ioctl+0x117c/0x211c) [ 86.991494][ T2978] r10:8415157c r9:00000000 r8:00000000 r7:00000001 r6:20000080 r5:84151500 [ 86.991686][ T2978] r4:84468000 [ 86.992120][ T2978] [<80550db4>] (userfaultfd_ioctl) from [<80502158>] (sys_ioctl+0x118/0xb58) [ 86.992629][ T2978] r10:83668c00 r9:00000003 r8:842e2900 r7:20000080 r6:842e2900 r5:00000000 [ 86.992919][ T2978] r4:c028aa05 [ 86.993050][ T2978] [<80502040>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 86.993356][ T2978] Exception stack(0xdf961fa8 to 0xdf961ff0) [ 86.993669][ T2978] 1fa0: ffffffff 00000000 00000003 c028aa05 20000080 00000000 [ 86.994229][ T2978] 1fc0: ffffffff 00000000 0008e050 00000036 000f4240 00000000 00000001 00003a97 [ 86.994996][ T2978] 1fe0: 7ebe5c70 7ebe5c60 00010694 0002e7e0 [ 86.995346][ T2978] r10:00000036 r9:83668c00 r8:80200288 r7:00000036 r6:0008e050 r5:00000000 [ 86.995564][ T2978] r4:ffffffff [ 86.996271][ C0] CPU0: stopping [ 86.996350][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc5-syzkaller #0 [ 86.996388][ C0] Hardware name: ARM-Versatile Express [ 86.996404][ C0] Backtrace: [ 86.996432][ C0] [<81837b0c>] (dump_backtrace) from [<81837c08>] (show_stack+0x18/0x1c) [ 86.996516][ C0] r7:00000014 r6:81b0f9f0 r5:600001d3 r4:81fbd4bc [ 86.996526][ C0] [<81837bf0>] (show_stack) from [<81855124>] (dump_stack_lvl+0x48/0x54) [ 86.996571][ C0] [<818550dc>] (dump_stack_lvl) from [<81855148>] (dump_stack+0x18/0x1c) [ 86.996621][ C0] r5:00000000 r4:00000004 [ 86.996631][ C0] [<81855130>] (dump_stack) from [<8020fb78>] (do_handle_IPI+0x2ac/0x2d8) [ 86.996678][ C0] [<8020f8cc>] (do_handle_IPI) from [<8020fbc4>] (ipi_handler+0x20/0x28) [ 86.996735][ C0] r9:8261adc0 r8:82601e50 r7:00000014 r6:81b0f9f0 r5:82c0cc80 r4:82c96d00 [ 86.996746][ C0] [<8020fba4>] (ipi_handler) from [<802c500c>] (handle_percpu_devid_irq+0x9c/0x2cc) [ 86.996800][ C0] [<802c4f70>] (handle_percpu_devid_irq) from [<802be798>] (generic_handle_domain_irq+0x30/0x40) [ 86.996866][ C0] r10:00000000 r9:8261adc0 r8:00000000 r7:df80a00c r6:824b0bc0 r5:df80a000 [ 86.996882][ C0] r4:8260cd28 r3:00010001 [ 86.996920][ C0] [<802be768>] (generic_handle_domain_irq) from [<802011c4>] (gic_handle_irq+0x68/0x7c) [ 86.996966][ C0] [<8020115c>] (gic_handle_irq) from [<818559e8>] (generic_handle_arch_irq+0x60/0x80) [ 86.997019][ C0] r7:82601ed8 r6:8213cb28 r5:82178740 r4:824b2224 [ 86.997084][ C0] [<81855988>] (generic_handle_arch_irq) from [<80200b74>] (__irq_svc+0x74/0xac) [ 86.997149][ C0] Exception stack(0x82601ed8 to 0x82601f20) [ 86.997177][ C0] 1ec0: 00000000 81fbd4bc [ 86.997208][ C0] 1ee0: 000326ac 00000001 8261adc0 8260c494 00000000 8260c4b8 00000000 00000000 [ 86.997238][ C0] 1f00: 00000000 82601f44 82601f18 82601f28 81856640 8185714c 20000013 ffffffff [ 86.997271][ C0] r9:8261adc0 r8:00000000 r7:82601f0c r6:ffffffff r5:20000013 r4:8185714c [ 86.997281][ C0] [<81857100>] (default_idle_call) from [<8029854c>] (do_idle+0x268/0x2d0) [ 86.997348][ C0] r7:8260c4b8 r6:8261adc0 r5:8260c494 r4:00000000 [ 86.997361][ C0] [<802982e4>] (do_idle) from [<802988e8>] (cpu_startup_entry+0x30/0x34) [ 86.997426][ C0] r10:82850000 r9:8261a8b0 r8:820ce060 r7:00000000 r6:8260c440 r5:82625e94 [ 86.997441][ C0] r4:000000e9 [ 86.997453][ C0] [<802988b8>] (cpu_startup_entry) from [<81857454>] (rest_init+0xdc/0xe0) [ 86.997499][ C0] [<81857378>] (rest_init) from [<82400bc4>] (arch_post_acpi_subsys_init+0x0/0x20) [ 86.997548][ C0] [<82400bb4>] (arch_call_rest_init) from [<8240129c>] (start_kernel+0x688/0x6ac) [ 86.997589][ C0] [<82400c14>] (start_kernel) from [<00000000>] (0x0) [ 87.004675][ T2978] Rebooting in 86400 seconds.. VM DIAGNOSIS: 07:13:50 Registers: info registers vcpu 0 CPU#0 R00=00000001 R01=0000369e R02=7ed1e000 R03=00000000 R04=00000001 R05=7ebe5c50 R06=00000ba2 R07=00000000 R08=000f4240 R09=00000000 R10=7ebe5c84 R11=7ebe5c2c R12=7ebe5c30 R13=7ebe5be8 R14=7ed1f4d8 R15=7ed1f518 PSR=20000010 --C- A S usr32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000 info registers vcpu 1 CPU#1 R00=60000093 R01=5b932000 R02=00000000 R03=824a86c0 R04=82769410 R05=00000000 R06=00000001 R07=df961984 R08=82853048 R09=df961983 R10=60000093 R11=df961970 R12=df961904 R13=df961904 R14=802bad20 R15=802bad24 PSR=60000093 -ZC- A S svc32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000